82 FLORIDA GEOLOGICAL SURVEY-EIGHTH ANNUAL REPORT. 
Florida is furnished by the inclusion in the limestones of the upper 
Oligocene near Tampa of a rather abundant and diversified land 
and fresh-water invertebrate fauna, and in the Alum Bluff forma¬ 
tion of land plants found at Alum Bluff on the Apalachicola River, 
as well as by the land vertebrates described in this paper. 
A NEW MIOCENE FAUNA. 
Early in November, 1915, the Geological Survey received no¬ 
tice through Mr. E. B. Epps of the discovery of fragments .of ver¬ 
tebrate fossils from a well on the Griscom plantation about 15 miles 
north of Tallahassee (Sec. 32, T. 3, N., R. 1 E.). On November 
2 this locality was visited by Messrs. Epps and R. M. Harper, and 
on November 4 and November 20 by Messrs. Epps, H. Gunter and 
the writer. Subsequently collections at this locality were made by 
the writer and others. A few very interesting fossils were secured, 
the best preserved of which are here described. 
After passing through the surface materials which consist of 
coarse red, clayey sands, 15 to 20 feet in thickness, the well from 
which these fossils were obtained, enters the gray phosphatic sands 
and clays characteristic of the Alum Bluff formation and terminates 
at the depth of about 60 feet in hard limestone, probably of the 
Chattahoochee formation. The vertebrate fossils are imbedded in 
the gray phosphatic sands and are believed to have come chiefly 
from a depth of from 25 to 50 feet. 
During the present year a few vertebrate fossils have been ob¬ 
tained at the fuller's earth mine at Midway, in Gad.sden County. 
Although few in number, the fossils found at this locality are char¬ 
acteristic and represent the same fauna as that found on the Gris¬ 
com plantation. In addition the writer in 1908 obtained from the 
fuller’s earth mine at Quincy a well preserved loyver cheek tooth 
of Mery chip pus, and a few other less characteristic fossils. 
Although only a few species are represented, the new fauna ob¬ 
tained at these localities is nevertheless of special interest since it 
includes the earliest Tertiary land, vertebrates obtained in the east¬ 
ern United States. The evidence afforded by the vertebrate fos¬ 
sils as to the age of the formation is likewise very welcome. In 
addition to the vertebrates the Alum Bluff formation contains ma¬ 
rine invertebrates, and it is of interest to compare the land and 
marine faunas thus associated. 
